This is an automatically translated description

A powerful new enemy wants to take over Angel Island, and Sonic and his friends must defend it at all costs!

When Neo Metal Sonic, an evil robot with Sonic's speed, Dr Eggman's intelligence, and an indestructible mechanical body, conquers the island to further strengthen his power, Sonic and his friends must unite to fight back. But even with the support of the resistance movement, will Sonic be able to defeat Neo Metal Sonic for good?